Active Volcanoes Assignment PDF

ASSIGNMENT Based on your assignment, please answer the following questions:  What causes a volcano to be active?  How is an active volcano different from an extinct volcano?  Why does the Philippines have many active volcanoes? Active Volcanoes  Are usually associated with...

ASSIGNMENT Based on your assignment, please answer the following questions:  What causes a volcano to be active?  How is an active volcano different from an extinct volcano?  Why does the Philippines have many active volcanoes? Active Volcanoes  Are usually associated with seismic activity, presence of hot water springs, and changes in the elevation of the volcano’s crater.  It can erupt anytime. Dormant Volcanoes They have no known history of eruption but may erupt based on seismic indications of tectonic activity beneath the volcano. Extinct Volcanoes Volcanoes that are not active or have not erupted for a long period of time.  Philippine Map showing the locations of Active and Inactive Volcanoes  Most Active Volcanoes in the Philippines Names of Volcano Location Latest Eruption Bulusan Sorsogon May 13, 2011 Kanlaon Negros Oriental July 25, 2006 Mayon Bicol December 20, 2009 Pinatubo Southern Luzon August 16, 1992 Taal Batangas October 3, 1977  Activity Time Identify the active and potentially active volcanoes located in Luzon, Visayas, and Mindanao. 1. Which among the three major island groups in the Philippines (Luzon, Visayas, Mindanao) has the greatest number of active volcanoes? Potentially active volcanoes? 2. In the global scale, is there a relationship between the formation of volcanoes and the tectonic plates? Briefly describe their relationship.  The Philippines has several small plates found between convergent plates. At present, volcanic arc are located between the Philippine plate and the Eurasian plate. The 23 active volcanoes in the Philippines are located along the Pacific Ring of Fire, where subduction of the Philippine plate and other trenches along the Luzon and Sulu Island occurs.  Due to its location in the Pacific Ring of Fire, volcanoes in the Philippines are known to have the deadliest eruptions.